Secondary or storage battery.



B` FORD,

SECONDARY 0R STORAGE BATTERY. APPLICATIUN m20 APR.4,19:8.

2&5 Patented Nav. 25, 15H8.

I HH! @115. im @4S/afn.

SECONDARY OP. STORAGE BATTERY.

Specicaton of Letters Patent.

Fortentet Nov. 2, figli?.

Application led pril 4,1918. Serial No. 226,737.

To all fic/"toml it may concern:

Be it known that. I, BRU-oe Fono, zi citizen of the Tl i eil Si. tes. sind :i resident of Philriflelphi. in the eountgv of Philadelphia und State oi ?ennsjflvanin, have invented eertiiin new .intl useful Improvements in Seef3=iiiliiij."or :Sti'irnge Batteries. ot which the illloivinfg' is n soeeiention.

The principal object ot' the present invention to minimize leakage between the Cells of :i multiple voltage battery unil at the sinne. tinie to provide sufiieient mechanical strengtl'i.

@ther ohjei-ts olt the invention will appear from the following; description of the einboiliineuts olf the invention chosen for illustrzitioii in the :ieeoniziinying drawings. in Which-- ure l. is n vieiv principally in eentriil section of :i niiiltiple `voltage batteri' enibotllving 'tentures oi the invention. unil Figf. zi seetion-.il view. illustrating :i nioililieiition.

The emiilufting LQiipPortsl. :ire proviileil on one ot their iiiees `with negative pole plate netive ninterizii j :nul on the other of their 'faces with positive pole pleite :ietive imiteriiil i3. rind the supports extend bevond the :ietive uniterizil is :i` This structure muy be otherwise tlesfrihi'il :is :i phite having :it the rentre] portion o t one linee i negative fornuiion :inil :it the genti-:il portion ol the other iiu'e :i positiviI torimii ion :inil having' its rim projei'vtinig liiionil both i'ornnitions. 5. is n, tuhn of lt rubber or other sliitiible )'iiililin;v ziizitirinl iinil ir is internnll)V proviileil with grooves l. which reeeivithe inirts oi' the plaire l vfliiih liroiiivi hevonil the 'tornintions on :he linens thereof'. rl`his tube nniiY he i'ontinuoiis :intl consist of one piece. :is shown in Fiel l.. or it nini' he huilt up ot' continuous' riot-sections 5t. eiii'h provitleil with ii groove il, :is shown rl'lxi x1- in 1 igf. 2. point; is thzii in meh ense the \v:ill of the The end pietes or clamping rines S by eonipressing this rubber tube l in the hard rubher tube 7. enuse the walls oi the. grooves 6 to closely hug the rinis ot the plete struc -tiires :intl thus insures tivht 'oints One wey of assembling the structure. shown in Fig. l, is to stort with the sott rubber tiihe turned insiiliL out with the grooves on the outsiile :incl to right it in the ziet ol assemblage. Another 'wey is to build up the soft rubber tube eronnil the olfite structure before it. is vuleenizeil.

ilflnit I elnini is:

l. multiple voltage battery eoniprising the combination oi n one pieee inner tub-e of reliitiveiy yielding nniteriiil interniillv proi'iiletl with :innulnr `grooves. white structures 6 having their rims engngeil b v the walls ot sziiil grooves. iin external tube of relatively tion-:fielding iniitirizil. :incl end pieees conneeteil with the external ruhe and pressing' on the enils ot thi` inner tiihe. substiintiiilliY :is described.

L. )t multiple voltage hotter): roniprisinglthe Combination of n, one piece inner tube of vieliling nniteriiil internally provided with nnnnlin grooves. pleite. structures having their rims engage-il h v the iviills oi sniil grooves. :in external raising. :intl ineens for compressing the inner tiiheiendwise.

3. multiple. voltage batteri* comprising the Combination of :i one piene tube internnllj.' provided v-:ith zinnuliir grooves :nul pluto structures having' their rinis engaged h v the mills ot' sziiil grooves.

`ll. ln :i multiple voltage buttery the romhiniition ol :in inner continuous ring element of relzitivelv yielding nniteriiil having :in internnl annuler groove of which the wall continuous. :i plate structure having its rim inelosecl by the continuous Wall of the groove, and means for compressing the ring elementy substantially es described.

BRUCE FRD. 

